document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=974073>Question 974073</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Question<BR>\n" );
document.write( "The points on the curve y = x3 - x2 - x + 1, where the tangent is parallel to x-axis are<BR>\n" );
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document.write( "1. (1, 0), (- 1/3, 32/27)<BR>\n" );
document.write( "2. (1, 0), (1, 1)<BR>\n" );
document.write( "3. (- 1/3, 21/37), (0, 0)\r<BR>\n" );
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document.write( "Answer Explanation :  y = x3-x2-x+1<BR>\n" );
document.write( "Thus by putting value, this answer is correct.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596091 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=596091\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The points on the curve y = x3 - x2 - x + 1, where the tangent is parallel to x-axis are<BR>\n" );
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document.write( "Find the 1st derivative:<BR>\n" );
document.write( "f'(x) = 3x^2 - 2x - 1<BR>\n" );
document.write( "Parallel to the x-axis --> slope = 0 --> f'(x) = 0<BR>\n" );
document.write( "3x^2 - 2x - 1 = 0<BR>\n" );
document.write( "(3x + 1)*(x - 1) = 0<BR>\n" );
document.write( "x = -1/3, x = 1<BR>\n" );
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